Control system of driving power supply for pulsed fiber laser based on cpld

A fiber laser and driving power technology, applied in excitation methods/devices, etc., can solve the problems of real-time acquisition and control of optical power, and achieve the effects of sensitive control, low cost, and fast feedback

Active Publication Date: 2016-04-27
BEIJING INFORMATION SCI & TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The average power of this type of laser varies in different processing designs, which brings troubles to the real-time collection and control of optical power

Method used

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  • Control system of driving power supply for pulsed fiber laser based on cpld
  • Control system of driving power supply for pulsed fiber laser based on cpld
  • Control system of driving power supply for pulsed fiber laser based on cpld

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Embodiment Construction

[0023] The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

[0024] figure 1 A system block diagram of a CPLD-based pulsed fiber laser drive power control system according to the present invention is schematically shown. The drive power control system 100 according to the present invention comprises a micro control unit 101, a first digital-to-analog converter 102, a second digital-to-analog converter 103, a multiplexer 104, a CPLD control chip 105, a pumping source 106 of a laser 108, Pulse fiber laser 108 and photoelectric signal processing unit 109.

[0025] The micro control uni...

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Abstract

The invention discloses a pulse fiber laser driven power control system based on a CPLD (Complex Programmable Logic Device). The system comprises a micro control unit, a first digital analog converter, a second digital analog converter, a multiplexer, a CPLD control chip, a pumping source, a pulse fiber laser and a photoelectric signal processing unit, wherein the CPLD control chip is used for receiving a feedback signal sent by the laser so as to realize integral control on a pulse fiber laser driven power, including power setting and regulation of the laser, power regulation of the pumping source, stable output control of the laser, operating temperature regulation and power feedback of the laser, and pulse width modulation of an acoustic-optical modulator. According to the pulse fiber laser driven power control system disclosed by the invention, power control of the laser can be realized by the CPLD chip with cost effectiveness and calculation speed advantage, especially the regulation and control of temperature and power. The pulse fiber laser driven power control system has the characteristics of low cost, simplicity in circuit control and easiness in implementation, and also has high feedback speed and sensitive control.

Description

technical field [0001] The invention relates to the field of pulsed fiber lasers. Specifically, the present invention relates to a CPLD-based pulsed fiber laser drive power supply control system. Background technique [0002] In the field of precision processing, laser power is one of the most important parameters of lasers, and laser output power seriously affects the quality of laser processing. In the process of laser processing, how to monitor the change of laser power in real time and improve the stability and control accuracy of laser power plays an extremely important role in the precision processing of products. [0003] At present, the control system has become a relatively important part in the fields of fiber laser, optical communication, and optical sensing. The main control system is generally controlled by the combination of analog circuit and processor or embedded, and the main control algorithm mostly uses PID control. The processor is mainly controlled by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/09
Inventor 张荫民祝连庆骆飞周哲海董明利娄小平
Owner BEIJING INFORMATION SCI & TECH UNIV
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